Quote:
Originally Posted by chris719
Just like that optimization work they performed with the E46 M3 which left the factory with 5W-30? Only to be panic-switched to 10W-60 when they started blowing up, then only after they continued to blow up did they perform a recall of course.
Just saying, not every decision BMW makes is direct from engineering or has the right motivation. They might even make mistakes!
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I did not say that 10W-60 was the optimum oil. Of course there is really no such thing as single optimal choice for something like and oil. What would be optimal on a summer race track in Arizona is certainly not the optimal oil for a winter commute in Alaska. What I and SFP did say is that when BMW did optimization work on various components and the entire system, it is quite obvious that they did so with 10W-60 oil and its properties.